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Table 1.

Minimum initial mass for SN Ib/c and IIb candidate stars (Mmin, WR and Mmin, IIb, respectively), their formation rate for each stellar simulation, and the fraction of them that successfully explode in SNe Ib/c and IIb, respectively, for different SN engines.

Stellar simulation
Default Shell over/ Lower core Initial rotation, Increased winds,
(Fig. 1a) undershooting overshooting ω/ωcrit = 0.4 η = 1.5 (Fig. 1b)
Mmin, WR(Mmin, IIb) [M] 31 (26.2) 30 (25.4) 55 (53.7) 27.0 (24.3) 23 (18.8)
Ib/c (IIb) cand. [10−3(M/yr)−1] 1.3 (0.47) 1.47 (0.27) 0.43 (0.11) 1.38 (0.61) 2.5 (0.85)

FR12+rapid 0% (31%) 0% (59%) 0% (13.4%) 0% (53%) 48% (42%)
FR12+delayed 0% (30%) 0% (68%) 0% (7%) 0% (52%) 65% (100%)
S16+N20 0% (0%) 0% (0%) 0% (7%) 0% (0%) 2.6% (44%)
S16+S19.8 0% (0%) 0% (0%) 0% (7%) 0% (0%) 4% (50%)
P20E16+N20 0% (0%) 0% (0%) 0% (7%) 0% (0%) 1% (21%)
C20 100% (100%) 100% (100%) 100% (100%) 100% (87%) 60% (74%)

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